/*
 *
 * Copyright 2001-2007 The Ant-Contrib project
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package net.sf.antcontrib.cpptasks.sun;

import net.sf.antcontrib.cpptasks.OptimizationEnum;
import net.sf.antcontrib.cpptasks.compiler.LinkType;
import net.sf.antcontrib.cpptasks.compiler.Linker;
import net.sf.antcontrib.cpptasks.gcc.GccCompatibleCCompiler;

import java.io.File;
import java.util.Vector;

import static net.sf.antcontrib.cpptasks.CUtil.getExecutableLocation;

/**
 * Adapter for the Sun (r) Forte (tm) C++ compiler
 *
 * @author Curt Arnold
 */
public final class ForteCCCompiler extends GccCompatibleCCompiler {
    private final static String[] headerExtensions = new String[]{".h", ".hpp", ".inl"};
    private final static String[] sourceExtensions = new String[]{".c", ".cc", ".cxx", ".cpp",
            ".c++", ".i", ".s"};

    private static final ForteCCCompiler instance = new ForteCCCompiler("CC",
            sourceExtensions, headerExtensions);

    /**
     * Gets singleton instance of this class
     *
     * @return ForteCCCompiler
     */
    public static ForteCCCompiler getInstance() {
        return instance;
    }

    private String identifier;
    private File[] includePath;

    /**
     * Private constructor. Use ForteCCCompiler.getInstance() to get singleton
     * instance of this class.
     */
    private ForteCCCompiler(String command, String[] sourceExtensions,
                            String[] headerExtensions) {
        super(command, "-V", sourceExtensions, headerExtensions, false, null,
                false, null);
    }

    public void addImpliedArgs(final Vector<String> args,
                               final boolean debug,
                               final boolean multithreaded,
                               final boolean exceptions,
                               final LinkType linkType,
                               final Boolean rtti,
                               final OptimizationEnum optimization) {
        args.addElement("-c");
        if (debug) {
            args.addElement("-g");
        }
        if (optimization != null && optimization.isSpeed()) {
            args.addElement("-xO2");
        }
        if (rtti != null) {
            if (rtti) {
                args.addElement("-features=rtti");
            } else {
                args.addElement("-features=no%rtti");
            }
        }
        if (multithreaded) {
            args.addElement("-mt");
        }
        if (linkType.isSharedLibrary()) {
            args.addElement("-KPIC");
        }

    }

    public void addWarningSwitch(Vector<String> args, int level) {
        switch (level) {
            case 0:
                args.addElement("-w");
                break;
            case 1:
            case 2:
                break;
            case 3:
                args.addElement("+w");
                break;
            case 4:
                args.addElement("+w2");
                break;
            case 5:
                args.addElement("+w2");
                args.addElement("-xwe");
        }
    }

    public File[] getEnvironmentIncludePath() {
        if (includePath == null) {
            File ccLoc = getExecutableLocation("CC");
            if (ccLoc != null) {
                File compilerIncludeDir =
                        new File(new File(ccLoc, "../include").getAbsolutePath());
                if (compilerIncludeDir.exists()) {
                    includePath = new File[2];
                    includePath[0] = compilerIncludeDir;
                }
            }
            if (includePath == null) {
                includePath = new File[1];
            }
            includePath[includePath.length - 1] = new File("/usr/include");
        }
        return includePath;
    }

    public Linker getLinker(LinkType linkType) {
        return ForteCCLinker.getInstance().getLinker(linkType);
    }

    public int getMaximumCommandLength() {
        return Integer.MAX_VALUE;
    }
}
